Silkland 40Gbps USB 4 Extension Cable for Thunderbolt 4 240W Charging 8K 60Hz USB C Extender 3 3ft

Product description Previous page Next page Previous page Next page 1 40Gbps Data Transfer 2 8K & Dual 4K Output 3 240W Fast Charging Previous page Next page Previous page Next page 1 Full Compatibility 2 No Flipping Required 3 Superior Materials Why can't it reach 40Gbps for me? 1. Please check whether both the connected device and the cable support the specified bandwidth or resolution. 2. For a stable connection, keep the total combined length between the device and the cable within 10 feet. Why can't I achieve 8K/4k resolution with a hub? Please make sure that the hub and cable you are using also support 8K/4K. Why is the connection loose and unstable? 1. First, ensure the USB-C port on your device is clean and free of physical damage. 2. Try flipping the female adapter and reconnecting it to the device.

Highlights: 【40Gbps Upgraded Data Transfer】 This USB4 extension cable backs up 3GB files within 1 second. Going beyond the limits of USB-C 3.2 (20G/10G) cables, this USBC extender is built to be future-proof and seamlessly connects the Thunderbolt 4/3, USB4 devices (SSD, docking stations, hubs), enabling maximum transmission speeds up to 40Gbps. Note: actual transfer speed depends on your device. The recommended total cable length between devices is under 10FT for optimal performance. 【Single 8K/Dual 4K Video Output】 Provide a single 8K@60Hz / 4K@240Hz or dual 4K@60Hz display support. Whether it's for multi-screen workflow or long-distance home theater, it releases your efficiency and delivers a gorgeous visual feast. NOTE: Make sure your cable/hub/device all support the resolution you want to achieve. 【240W High-Power Charging】Never compromise on power or reach. Our Thunderbolt 4 extension cable supports 240W 48V/5A fast charging. Keeping even the most power-hungry laptops charged at full speed. It seamlessly works with your existing 140W, 100W, or lower-wattage USB-C chargers and devices. Extend your setup—it breaks the limitation of short original cables, giving you greater freedom to charge and use your devices from a comfortable distance. 【Universal Compatibility for USB-C Devices】The female USB-C port features a reversible design, allowing easy insertion in any orientation—no flipping needed. Female: docking station / USB C hub / USB C cable / SSD /

Key details: Package Dimensions: 9.65 x 6.97 x 0.51 inches; 2.12 ounces | Customer Reviews: 4.7 4.7 out of 5 stars (458)

What you can expect: 【40Gbps Upgraded Data Transfer】 This USB4 extension cable backs up 3GB files within 1 second. Going beyond the limits of USB-C 3.2 (20G/10G) cables, this USBC extender is built to be future-proof and seamlessly connects the Thunderbolt 4/3, USB4 devices (SSD, docking stations, hubs), enabling maximum transmission speeds up to 40Gbps. Note: actual transfer speed depends on your device. The recommended total cable length between devices is under 10FT for optimal performance. 【Single 8K/Dual 4K Video Output】 Provide a single 8K@60Hz / 4K@240Hz or dual 4K@60Hz display support. Whether it's for multi-screen workflow or long-distance home theater, it releases your efficiency and delivers a gorgeous visual feast. NOTE: Make sure your cable/hub/device all support the resolution you want to achieve. 【240W High-Power Charging】Never compromise on power or reach. Our Thunderbolt 4 extension cable supports 240W 48V/5A fast charging. Keeping even the most power-hungry laptops charged at full speed. It seamlessly works with your existing 140W, 100W, or lower-wattage USB-C chargers and devices. Extend your setup—it breaks the limitation of short original cables, giving you greater freedom to charge and use your devices from a comfortable distance. 【Universal Compatibility for USB-C Devices】The female USB-C port features a reversible design, allowing easy insertion in any orientation—no flipping needed. Female: docking station / USB C hub / USB C cable / SSD / MagSafe and more. Male compatible with Macbook Pro/Air, USB C monitor, iPad Pro/Air/Mini, iPhone 17/16 Series, Galaxy S24/S23, Steam Deck,

Customer feedback: 4.7/5 average rating.

Customers say: Customers find the USB cable works well as a hub extension and appreciate its solid construction and durability. Customers disagree on the lag performance.

Review snippets: I said I'd be back if it keeps working. The cable is perfect. Pick it up, plug it in and crank up the volume, including going through my headphones amp. I am convinced the problems I had were caused by / I use it to extend the cord for my docking station, and everything works without skipping a beat. It can handle data transfers, running multiple external screens, plug in Bluetooth accessories, and a Ethernet cable all at the same time.

From the brand Previous page Focusing on high-end cable development, we offer a complete range of first-class certified cables for home and office. We have obtained official certification for various products, including the latest DP80 Cable, DP54 Cable, USB4 80Gbps Cable, Thunderbolt 5 Cable, HDMI 2.1 Cable, etc. USB C to USB C 80Gbps USB C to USB C 40Gbps Certified Thunderbolt 5 Cable Next page